EP0892932B1 - Bogenförmige flexible würfeleckige folie und verfahren zur herstellung - Google Patents

Bogenförmige flexible würfeleckige folie und verfahren zur herstellung Download PDF

Info

Publication number
EP0892932B1
EP0892932B1 EP97915966A EP97915966A EP0892932B1 EP 0892932 B1 EP0892932 B1 EP 0892932B1 EP 97915966 A EP97915966 A EP 97915966A EP 97915966 A EP97915966 A EP 97915966A EP 0892932 B1 EP0892932 B1 EP 0892932B1
Authority
EP
European Patent Office
Prior art keywords
microstructured
sheeting
sealing member
cube
retroreflective
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP97915966A
Other languages
English (en)
French (fr)
Other versions
EP0892932A1 (de
Inventor
Jeffrey D. Janovec
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
3M Co
Original Assignee
Minnesota Mining and Manufacturing Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Publication of EP0892932A1 publication Critical patent/EP0892932A1/de
Application granted granted Critical
Publication of EP0892932B1 publication Critical patent/EP0892932B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/12—Reflex reflectors
    • G02B5/122—Reflex reflectors cube corner, trihedral or triple reflector type
    • G02B5/124—Reflex reflectors cube corner, trihedral or triple reflector type plural reflecting elements forming part of a unitary plate or sheet
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S359/00—Optical: systems and elements
    • Y10S359/90—Methods
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles

Definitions

  • the body layer protects the sheeting from the environment, and can provide mechanical integrity to the sheeting. It also gives the sheeting the ability to bend, to curl, or to flex.
  • Preferred polymeric materials used in the body layer are flexible and resistant to degradation by ultraviolet (UV) light radiation so that the retroreflective sheeting can be used for long-term outdoor applications.
  • Examples of polymers that may be used to make the body layer include fluorinated polymers; ionomeric ethylene copolymers; low density polyethylenes; plasticized vinyl halide polymers; polyethylene copolymers; and aliphatic and aromatic polyurethanes. Commercially available polyurethanes include: PNO3-214 (from Morton International Inc., Seabrook, New Hampshire) or X-4107 (from B.F. Goodrich Company, Cleveland, Ohio).
  • the microstructured member and sealing member are bonded along bond lines that form a regular array of polygons.
  • a suitable polygon allows the microstructured member to grow in curvature or to flatten as a response to a dimensional change of the traffic control devices.
  • Preferred polygons include parallelograms, such as rectangles or squares.
  • the length of the rectangles can range between approximately 5 and 150 mm (0.2 to 6 in); the width of the rectangles can range from between approximately 5 and 25 mm (0.2 to 1 in).
  • the width is taken to be the longitudinal direction of the sheeting.
  • the retroreflective sheeting is bonded in a repeating rectangular pattern of 12.7 mm by 8.6 mm (0.50 x 0.34 in).

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Road Signs Or Road Markings (AREA)

Claims (6)

  1. Verfahren zum Herstellen eines kissenartigen retroreflektierenden Artikels mit den Schritten:
    (a) Bereitstellen eines mikrostrukturierten retroreflektierenden Teils (11) mit einem Körperabschnitt (14) und mehreren Würfeleckenelementen (12), die von einer ersten Seite (20) des Körperabschnitts (14) vorstehen;
    (b) Bereitstellen eines Dichtungsteils (24);
    (c) Transportieren des mikrostrukturierten Teils (11) und des Dichtungsteils (24) mit im wesentlichen gleicher Geschwindigkeit so, daß das Dichtungsteil (24) relativ zum mikrostrukturierten Teil (11) im wesentlichen spannungslos ist, und so, daß die Würfeleckenelemente (12) zum Dichtungsteil (24) weisen; und
    (d) gegenseitiges Verbinden der ersten Seite (20) des Körperabschnitts (14) und des Dichtungsteils (24) in einem regelmäßigen Muster, um abgedichtete Zellen (17) zu bilden, die jeweils ein gewölbtes mikrostrukturiertes Teil (11) haben.
  2. Verfahren nach Anspruch 1, wobei der Schritt (d) Wärmeverbinden aufweist.
  3. Retroreflektierende Lage (10) mit:
    (a) einem mikrostrukturierten retroreflektierenden Teil (11) mit einem Körperabschnitt (14) und mehreren Würfeleckenelementen (12), die von einer ersten Seite (20) des Körperabschnitts (14) vorstehen;
    (b) einem Dichtungsteil (24); und
    (c) einem Netz aus sich schneidenden Linien (30), die die erste Seite (20) des Körperabschnitts (14) und das Dichtungsteil (24) in einem regelmäßigen Zellenmuster miteinander verbinden, wobei die retroreflektierende Lage (10) so angepaßt ist, daß es sich um bis zu 3 % mit minimaler Verzerrung der Würfeleckenelemente (12) verlängern kann und daß es zwischen folgendem veränderbar ist:
    (i) einem Normalzustand, in dem das mikrostrukturierte Teil (11) gewölbt und im wesentlichen parallel zum Dichtungsteil (24) ist; und
    (ii) einem komprimierten Zustand, in dem das mikrostrukturierte Teil (11) Bogen bildet und das Dichtungsteil (24) im wesentlichen flach ist.
  4. Lage nach Anspruch 3, wobei die Würfeleckenelemente (12) Polymere aufweisen, die aus der Gruppe ausgewählt sind, die aus Acryl, Polycarbonat, Polyester, Polyurethan und vernetzten Acrylaten besteht.
  5. Retroreflektierende Verkehrsleitvorrichtung (50) mit:
    (a) einer polymeren Vorrichtung; und
    (b) der retroreflektierenden Lage (10) nach Anspruch 3, das mit einer Außenfläche der Vorrichtung so verbunden ist, daß bei Zusammenziehen der polymeren Vorrichtung als Reaktion auf sinkende Umgebungstemperatur das mikrostrukturierte Teil (11) Bogen bildet und daß sich bei Dehnung der polymeren Vorrichtung als Reaktion auf steigende Umgebungstemperatur das mikrostrukturierte Teil (11) abflacht.
  6. Vorrichtung nach Anspruch 5, wobei die polymere Vorrichtung Polymere aufweist, die aus einer Gruppe ausgewählt sind, die aus Polyethylen niedriger Dichte, Polyethylen hoher Dichte, Polypropylen, weichmacherhaltigem Polyvinylchlorid und deren Copolymeren besteht.
EP97915966A 1996-04-10 1997-03-12 Bogenförmige flexible würfeleckige folie und verfahren zur herstellung Expired - Lifetime EP0892932B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/631,856 US5805338A (en) 1996-04-10 1996-04-10 Pillowed flexible cube-corner sheeting and methods of manufacture
US631856 1996-04-10
PCT/US1997/004041 WO1997038335A1 (en) 1996-04-10 1997-03-12 Pillowed flexible cube-corner sheeting and methods of manufacture

Publications (2)

Publication Number Publication Date
EP0892932A1 EP0892932A1 (de) 1999-01-27
EP0892932B1 true EP0892932B1 (de) 2001-01-31

Family

ID=24533056

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97915966A Expired - Lifetime EP0892932B1 (de) 1996-04-10 1997-03-12 Bogenförmige flexible würfeleckige folie und verfahren zur herstellung

Country Status (10)

Country Link
US (2) US5805338A (de)
EP (1) EP0892932B1 (de)
JP (1) JP2000508435A (de)
KR (1) KR20000005263A (de)
CN (1) CN1105923C (de)
AU (1) AU708436B2 (de)
CA (1) CA2249608A1 (de)
DE (1) DE69704019T2 (de)
RU (1) RU2182944C2 (de)
WO (1) WO1997038335A1 (de)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5805338A (en) * 1996-04-10 1998-09-08 Minnesota Minning And Manufacturing Company Pillowed flexible cube-corner sheeting and methods of manufacture
WO1998017466A1 (en) 1996-10-23 1998-04-30 Minnesota Mining And Manufacturing Company Article comprising a flexible retroreflective sheeting
US6304364B1 (en) * 1997-06-11 2001-10-16 President & Fellows Of Harvard College Elastomeric light valves
US20050185279A1 (en) * 1999-01-21 2005-08-25 Reflexite Corporation Durable, open-faced retroreflective prismatic construction
US6472050B1 (en) * 1999-12-30 2002-10-29 Avery Dennison Corporation Light stable fluorescent vinyl suitable for use as a highway retroreflective roll-up sign
US7364314B2 (en) * 2002-05-15 2008-04-29 Reflexite Corporation Optical structures
TWI341927B (en) * 2002-05-15 2011-05-11 Reflexite Corp Optical structures
KR20040017737A (ko) * 2002-08-23 2004-02-27 김순정 반사시트의 제조방법과 그 장치 및 이로부터 제조되는반사시트
US20040264010A1 (en) * 2003-06-20 2004-12-30 Yuan-Chun Mao Light reflector for personal items
ATE428945T1 (de) * 2003-12-09 2009-05-15 Reflexite Corp Methode und apparat zur herstellung einer optischen struktur
NL1025360C2 (nl) * 2004-01-29 2006-10-24 Dox Vako Internat B V Warmtelasbaar reflectiemateriaal.
CA2596354A1 (en) * 2005-01-31 2006-08-10 Reflexite Corporation Fabric backed roll-up sign material and garment tapes
US20070014997A1 (en) * 2005-07-14 2007-01-18 3M Innovative Properties Company Tool and method of making and using the same
US7906057B2 (en) * 2005-07-14 2011-03-15 3M Innovative Properties Company Nanostructured article and method of making the same
US7651863B2 (en) * 2005-07-14 2010-01-26 3M Innovative Properties Company Surface-enhanced spectroscopic method, flexible structured substrate, and method of making the same
US7611251B2 (en) * 2006-04-18 2009-11-03 3M Innovative Properties Company Retroreflective articles comprising olefinic seal films
US7842374B2 (en) * 2006-07-28 2010-11-30 3M Innovative Properties Company Retroreflective article comprising a copolyester ether composition layer and method of making same
US20110216412A1 (en) * 2010-03-05 2011-09-08 David Reed Master tools with selectively orientable regions for manufacture of patterned sheeting
USD665584S1 (en) 2010-03-05 2012-08-21 Orafol Europe Gmbh Retro-reflective sheeting with a corner cube surface pattern having angular corner cube circular regions
EP2558289B1 (de) * 2010-04-15 2018-12-26 3M Innovative Properties Company Rückstrahlende artikel mit optisch aktiven bereichen und optisch inaktiven bereichen
JP6073781B2 (ja) 2010-06-01 2017-02-01 スリーエム イノベイティブ プロパティズ カンパニー 多層封止フィルム
KR101325797B1 (ko) 2010-06-18 2013-11-05 (주)엘지하우시스 광 반사 기능 소재 및 그 제조 방법
JP5495458B1 (ja) * 2013-09-11 2014-05-21 日東電工株式会社 光学フィルム積層体の製造方法
CN104483730B (zh) * 2014-12-26 2017-01-25 常州华日升反光材料股份有限公司 微棱镜型反光膜的生产方法
KR102434751B1 (ko) * 2015-01-29 2022-08-23 한국과학기술원 매크로 프리패턴을 이용한 보안패널의 제조방법
RU2737451C1 (ru) * 2019-12-25 2020-11-30 Акционерное общество "Научно-производственное предприятие "Исток" имени А.И. Шокина" (АО "НПП "Исток" им. Шокина") Способ изготовления металлостеклянных изделий

Family Cites Families (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3684348A (en) * 1970-09-29 1972-08-15 Rowland Dev Corp Retroreflective material
US3712706A (en) * 1971-01-04 1973-01-23 American Cyanamid Co Retroreflective surface
US3992080A (en) * 1975-06-13 1976-11-16 Reflexite Corporation Retroreflective sheet material with controlled stretch and method of making same
US4025159A (en) * 1976-02-17 1977-05-24 Minnesota Mining And Manufacturing Company Cellular retroreflective sheeting
DE2753029B1 (de) * 1977-11-28 1979-03-29 Swarovski & Co Wildwarnreflektor
US4202600A (en) * 1978-04-24 1980-05-13 Avery International Corporation Diced retroreflective sheeting
US4243618A (en) * 1978-10-23 1981-01-06 Avery International Corporation Method for forming retroreflective sheeting
US4588258A (en) * 1983-09-12 1986-05-13 Minnesota Mining And Manufacturing Company Cube-corner retroreflective articles having wide angularity in multiple viewing planes
US4555161A (en) * 1984-02-16 1985-11-26 Reflexite Corporation Encapsulated retroreflective material and method of making same
US4533592A (en) * 1984-08-02 1985-08-06 Minnesota Mining And Manufacturing Company Thermally stable flame retardant reflective and retroreflective trim
US4938563A (en) * 1986-11-21 1990-07-03 Minnesota Mining And Manufacturing Company High efficiency cube corner retroflective material
US4775219A (en) * 1986-11-21 1988-10-04 Minnesota Mining & Manufacturing Company Cube-corner retroreflective articles having tailored divergence profiles
US5047107A (en) * 1989-06-27 1991-09-10 Minnesota Mining And Manufacturing Company Method and apparatus for applying a reflective sleeve to a traffic cone
US5026204A (en) * 1989-11-29 1991-06-25 Traffix Devices, Inc. Traffic control element and method of erecting and stabilizing same
US5237448A (en) * 1991-02-05 1993-08-17 American Ingenuity, Inc. Visibility enhancing material
US5243457A (en) * 1991-02-05 1993-09-07 American Ingenuity, Inc. Material with enhanced visibility characteristics
CA2064484C (en) * 1991-04-11 1998-08-11 William P. Rowland Retroreflective sheet
US5300783A (en) * 1992-05-26 1994-04-05 American Ingenuity, Inc. Layered reflecting and luminous material
US5189553A (en) * 1992-06-08 1993-02-23 Minnesota Mining And Manufacturing Company Optimized construction of retroreflective articles for curved applications
US5315491A (en) * 1992-09-30 1994-05-24 American Ingenuity, Inc. Reflecting and luminous layered material
US5637173A (en) * 1993-02-17 1997-06-10 Reflexite Corporation Method for forming a retroreflective structure having free-standing prisms
US5614286A (en) * 1993-10-20 1997-03-25 Minnesota Mining And Manufacturing Company Conformable cube corner retroreflective sheeting
US5450235A (en) * 1993-10-20 1995-09-12 Minnesota Mining And Manufacturing Company Flexible cube-corner retroreflective sheeting
US5601911A (en) * 1994-11-24 1997-02-11 Nippon Carbidekogyo Kabushiki Kaisha Capsule type retroreflective sheeting
US5485311A (en) * 1995-01-06 1996-01-16 Mcallister; Richard Method of increasing retroreflective brightness in a retroreflective sheet material
US5805338A (en) * 1996-04-10 1998-09-08 Minnesota Minning And Manufacturing Company Pillowed flexible cube-corner sheeting and methods of manufacture

Also Published As

Publication number Publication date
RU2182944C2 (ru) 2002-05-27
DE69704019T2 (de) 2001-07-19
EP0892932A1 (de) 1999-01-27
CA2249608A1 (en) 1997-10-16
US5805338A (en) 1998-09-08
CN1105923C (zh) 2003-04-16
US5930040A (en) 1999-07-27
CN1215478A (zh) 1999-04-28
AU2325997A (en) 1997-10-29
JP2000508435A (ja) 2000-07-04
DE69704019D1 (de) 2001-03-08
AU708436B2 (en) 1999-08-05
WO1997038335A1 (en) 1997-10-16
KR20000005263A (ko) 2000-01-25

Similar Documents

Publication Publication Date Title
EP0892932B1 (de) Bogenförmige flexible würfeleckige folie und verfahren zur herstellung
US10690819B2 (en) Multi-layer sealing films
CA1255861A (en) Transparent multi-layer cover film for retroreflective sheeting
EP0896682B1 (de) Geformte ultraflexible retroreflektierende würfeleckige zusammengesetzte folie mit optischen zieleigenschaften und verfahren zu deren herstellung
US5691846A (en) Ultra-flexible retroreflective cube corner composite sheetings and methods of manufacture
US5450235A (en) Flexible cube-corner retroreflective sheeting
EP0724737B1 (de) Ultraflexible retroreflektive würfeleckige zusammengetzte folie und herstellungsverfahren
CA1309007C (en) Retroreflective sheeting with backing film
EP2046576B1 (de) Rückstrahlender artikel mit einer copolyester-ether-schicht und herstellungsverfahren dafür
MXPA98008962A (en) Material in layers composed of retrorreflector cube corners, ultraflexible, conformed with optical objective properties and a method for the manufacture of the

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19981016

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE FR GB IT NL

17Q First examination report despatched

Effective date: 19990701

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

17Q First examination report despatched

Effective date: 19990701

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT NL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20010131

REF Corresponds to:

Ref document number: 69704019

Country of ref document: DE

Date of ref document: 20010308

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20030221

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20030305

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20030331

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040312

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20041001

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20041001

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20040312

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20041001

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20080317

Year of fee payment: 12

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20091130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20091123